摘要
Objective:To report the use of a 3 mm rigid nasal endoscope in primary endoscopic stapedotomy and clinical and audiological outcomes.Materials and methods:Thirty patients diagnosed with primary otosclerosis underwent endoscopic stapedotomy that was performed using a 3 mm nasal endoscope(Karl Storz).At 6 months follow-up,the patients were evaluated for intraoperative findings,postoperative hearing outcomes and complications.Results:Canaloplasty was performed in 2(6.66%)patients,and no curettage of the canal wall was required in 12(40%)patients.Transposition of the chorda tympani nerve was conducted in 11(36.66%)patients.The average duration of surgery was 36 min(range 31e65 min).The air-bone gap(ABG)was 35 dB(range 24e50 dB)preoperatively and 14.63 dB(range 9e20 dB)postoperatively(p?0.00).At 6 months follow-up,<20 dB ABG was achieved in 93.33%of the patients.No major intraoperative/postoperative complications were detected.Conclusion:A 3 mm rigid nasal endoscope can be effectively used in stapedotomy to obtain adequate audiological outcomes.It can be considered as a better alternative to the standard microscope or 4 mm endoscope in preserving the posterior canal wall and chorda tympani nerve while minimizing operative time without causing significant complications.
